Buffalo Bills safety C.J. Gardner-Johnson was carted off the field during a training-camp practice on Saturday, Aug. 1 [1].

Gardner-Johnson is a key component of the Bills' defensive secondary. His absence during the preseason could force the team to accelerate the development of backup safeties or adjust their defensive schemes before the regular season begins.

The incident occurred during a practice session in Buffalo, New York [2]. Medical staff removed Gardner-Johnson from the field via cart to the locker room after he sustained a lower-body injury [1].

Reports on the specific nature of the injury vary slightly among sources. Some reports describe the ailment as a right lower-leg or foot injury [2], while other accounts specify a strain to the right lower-leg, or calf [3].

Despite the visual of the medical cart, some early assessments suggest the injury may not be catastrophic. Reports indicate that while the injury was worrisome, the player appears to have avoided a more serious ailment [4]. The team has not yet provided a formal timeline for his return to practice.

Training camp is a critical period for the Bills as they refine their roster. The loss of a starting-caliber safety, even temporarily, creates an immediate opening for other players to compete for snaps in the secondary.

C.J. Gardner-Johnson was carted off the field during a training-camp practice

A calf or lower-leg strain typically requires several weeks of recovery, which could sideline Gardner-Johnson for a significant portion of the preseason. While the injury does not appear to be season-ending, the timing disrupts the defensive synchronization required for the Bills' secondary heading into the 2026 season.